我正在使用ACR1255U-J1开发一个Android应用程序。我有一个TextView（用于显示标签的UID）和一个Button（用于连接ACR1255U-J1阅读器）。我的代码运行没有问题。
但是我不想单击“按钮”进行连接。所以我将Button单击的代码移动到onCreate。这是行不通的。请给我建议如何解决我的问题。
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothGatt;
import android.bluetooth.BluetoothManager;
import android.bluetooth.BluetoothProfile;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.acs.bluetooth.Acr1255uj1Reader;
import com.acs.bluetooth.Acr3901us1Reader;
import com.acs.bluetooth.BluetoothReader;
import com.acs.bluetooth.BluetoothReaderGattCallback;
import com.acs.bluetooth.BluetoothReaderManager;
import com.acs.bluetooth.BluetoothReader.OnCardStatusChangeListener;
import com.acs.bluetooth.BluetoothReaderGattCallback.OnConnectionStateChangeListener;
import com.acs.bluetooth.BluetoothReaderManager.OnReaderDetectionListener;
import com.acs.bluetooth.BluetoothReader.OnResponseApduAvailableListener;
import com.acs.bluetooth.BluetoothReader.OnAuthenticationCompleteListener;
public class BTRActivity extends AppCompatActivity {
private String mDeviceAddress = "20:91:48:5B:52:44";
private static final byte[] AUTO_POLLING_START = { (byte) 0xE0, 0x00, 0x00, 0x40, 0x01 };
private int mConnectState = BluetoothReader.STATE_DISCONNECTED;
private static final String DEFAULT_1255_MASTER_KEY = "ACR1255U-J1 Auth";
private byte masterKey[] = {65, 67, 82, 49, 50, 53, 53, 85, 45, 74, 49, 32, 65, 117, 116, 104};
byte[] apdu = { (byte) 0xFF, (byte) 0xCA, (byte) 0x00, (byte) 0x00, (byte) 0x00 };
private BluetoothReader mBluetoothReader;
private BluetoothReaderGattCallback mGattCallback;
private BluetoothReaderManager mBluetoothReaderManager;
private BluetoothGatt mBluetoothGatt;
private TextView txtConnectionState;
private TextView txtDisplay;
private Button cmdAuthentication;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_btr);
findUiViews();
setOnClickListener();
mGattCallback = new BluetoothReaderGattCallback();
mGattCallback.setOnConnectionStateChangeListener(new OnConnectionStateChangeListener() {
@Override
public void onConnectionStateChange(final BluetoothGatt gatt, final int state, final int newState) {
runOnUiThread(new Runnable() {
@Override
public void run() {
if (state != BluetoothGatt.GATT_SUCCESS) {
mConnectState = BluetoothReader.STATE_DISCONNECTED;
if (newState == BluetoothReader.STATE_CONNECTED) {
txtConnectionState.setText("Connect fail.");
} else if (newState == BluetoothReader.STATE_DISCONNECTED) {
txtConnectionState.setText("Disconnect fail.");
}
clearAllUi();
invalidateOptionsMenu();
return;
}
updateConnectionState(newState);
if (newState == BluetoothProfile.STATE_CONNECTED)
{
if (mBluetoothReaderManager != null) {
mBluetoothReaderManager.detectReader(gatt, mGattCallback);
}
} else if (newState == BluetoothProfile.STATE_DISCONNECTED) {
mBluetoothReader = null;
if (mBluetoothGatt != null)
{
mBluetoothGatt.close();
mBluetoothGatt = null;
}
}
}
});
}
});
mBluetoothReaderManager = new BluetoothReaderManager();
mBluetoothReaderManager.setOnReaderDetectionListener(new OnReaderDetectionListener() {
@Override
public void onReaderDetection(BluetoothReader reader) {
if (reader instanceof Acr1255uj1Reader)
{
//String strMessage = "On Acr1255uj1Reader Detected.";
//txtDisplay.setText(strMessage);
}
else
{
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(BTRActivity.this, "The device is not supported!", Toast.LENGTH_SHORT).show();
disconnectReader();
updateConnectionState(BluetoothReader.STATE_DISCONNECTED);
}
});
return;
}
mBluetoothReader = reader;
setListener(reader);
activateReader(reader);
//My move code from Button click
String str;
if (!mBluetoothReader.authenticate(masterKey)) {
str = "Card reader not ready";
} else {
str = "Authenticating...";
}
//----------------------------
}
});
connectReader();
}
protected void onDestroy()
{
super.onDestroy();
disconnectReader();
}
private void findUiViews()
{
txtConnectionState = (TextView) findViewById(R.id.tv_connectionState);
txtDisplay = (TextView) findViewById(R.id.tv_display);
cmdAuthentication =(Button) findViewById(R.id.cmd_authentication);
}
private void clearAllUi()
{
txtDisplay.setText("");
}
private void updateConnectionState(final int connectState)
{
mConnectState = connectState;
if (connectState == BluetoothReader.STATE_CONNECTING) {
txtConnectionState.setText("Connecting...");
} else if (connectState == BluetoothReader.STATE_CONNECTED) {
txtConnectionState.setText("Connected");
} else if (connectState == BluetoothReader.STATE_DISCONNECTING) {
txtConnectionState.setText("Disconnecting...");
} else {
txtConnectionState.setText("Disconnected");
clearAllUi();
}
invalidateOptionsMenu();
}
private String getResponseString(byte[] response, int errorCode) {
if (errorCode == BluetoothReader.ERROR_SUCCESS) {
if (response != null && response.length > 0) {
return ClientUtil.toHexString(response);
}
return "";
}
else{
return "";
}
}
private void activateReader(BluetoothReader reader)
{
if (reader == null) {
return;
}
if (reader instanceof Acr3901us1Reader) {
/* Start pairing to the reader. */
((Acr3901us1Reader) mBluetoothReader).startBonding();
} else if (mBluetoothReader instanceof Acr1255uj1Reader) {
/* Enable notification. */
mBluetoothReader.enableNotification(true);
}
}
private boolean connectReader()
{
BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
if (bluetoothManager == null) {
updateConnectionState(BluetoothReader.STATE_DISCONNECTED);
return false;
}
BluetoothAdapter bluetoothAdapter = bluetoothManager.getAdapter();
if (bluetoothAdapter == null) {
updateConnectionState(BluetoothReader.STATE_DISCONNECTED);
return false;
}
/* Clear old GATT connection. */
if (mBluetoothGatt != null) {
mBluetoothGatt.disconnect();
mBluetoothGatt.close();
mBluetoothGatt = null;
}
/* Create a new connection. */
final BluetoothDevice device = bluetoothAdapter
.getRemoteDevice(mDeviceAddress);
if (device == null) {
return false;
}
/* Connect to GATT server. */
updateConnectionState(BluetoothReader.STATE_CONNECTING);
mBluetoothGatt = device.connectGatt(this, true, mGattCallback);
return true;
}
private void disconnectReader()
{
if (mBluetoothGatt == null) {
updateConnectionState(BluetoothReader.STATE_DISCONNECTED);
return;
}
updateConnectionState(BluetoothReader.STATE_DISCONNECTING);
mBluetoothGatt.disconnect();
}
private void setOnClickListener()
{
cmdAuthentication.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (mBluetoothReader == null)
{
return;
}
if (masterKey != null && masterKey.length > 0)
{
if (!mBluetoothReader.authenticate(masterKey)) {
txtDisplay.setText("Card reader not ready");
} else {
txtDisplay.setText("Authenticating...");
}
}
else
{
txtDisplay.setText("Incorrecct master key.");
}
}
});
}
private void setListener(BluetoothReader reader)
{
mBluetoothReader.setOnCardStatusChangeListener(new OnCardStatusChangeListener() {
@Override
public void onCardStatusChange(BluetoothReader bluetoothReader, final int cardStatus) {
runOnUiThread(new Runnable() {
@Override
public void run() {
//txtCardStatus.setText(getCardStatusString(sta));
if (cardStatus == BluetoothReader.CARD_STATUS_PRESENT) {
mBluetoothReader.transmitApdu(apdu);
}
else
{
txtDisplay.setText("");
}
}
});
}
});
mBluetoothReader.setOnAuthenticationCompleteListener(new OnAuthenticationCompleteListener() {
@Override
public void onAuthenticationComplete(BluetoothReader bluetoothReader, final int errorCode) {
runOnUiThread(new Runnable() {
@Override
public void run() {
if (errorCode == BluetoothReader.ERROR_SUCCESS)
{
//txtDisplay.setText("Authentication Success!");
cmdAuthentication.setEnabled(false);
//Testing
mBluetoothReader.transmitEscapeCommand(AUTO_POLLING_START);
}
else
{
//txtDisplay.setText("Authentication Failed!");
int errorText = errorCode;
}
}
});
}
});
mBluetoothReader.setOnResponseApduAvailableListener(new OnResponseApduAvailableListener() {
@Override
public void onResponseApduAvailable(BluetoothReader bluetoothReader, final byte[] apdu, final int errorCode) {
runOnUiThread(new Runnable() {
@Override
public void run() {
txtDisplay.setText(getResponseString(apdu, errorCode));
}
});
}
});
}
}
Client ClientUtil类
public class ClientUtil {
public static String toHexString(byte[] array) {
String bufferString = "";
if (array != null) {
for (int i = 0; i < array.length; i++) {
String hexChar = Integer.toHexString(array[i] & 0xFF);
if (hexChar.length() == 1) {
hexChar = "0" + hexChar;
}
bufferString += hexChar.toUpperCase(Locale.US) + " ";
}
}
return bufferString;
}
}
答案 0 :(得分：0)
现在我已经解决了。我添加了另一个侦听器（setOnDeviceInfoAvailableListener）。
现在我不需要单击按钮。所有操作都在OnCreate（）方法中完成。